A car crash can change someone's life in the blink of an eye. It can leave scars that are emotional as well as physical. For anyone who loses a loved one to a car accident, it can be difficult to understand how such a tragedy could happen. If the collision involved a driver who driving in an unsafe manner, that often amplifies the hurt and pain. Massachusetts police allege that this is exactly what happened in a recent crash that took the life of one person and injured another.